Specification Brand : Tangxi BulletPoint1 : Wide Compatibility: This lens collar replacement foot is tailor made and compatible for EF70‑200mm, for EF100‑400mm, 18‑110mm lens, can't be used with other lens, otherwise, it won't fit. BulletPoint2 : Adjustable: The bottom of the lens bracket base is 85mm detachable lengthening quick release plate, with 1/4 inch and 3/8 inch screw holes and stainless steel anti slip screws at the bottom. You can adjust the lens and tripod to the right position. BulletPoint3 : For Arca Quick Release Plate: It is compatible for Arca type quick release systems, which allow you attach your lens to tripods, ball heads, clamps or for Arca standard panoramic heads. BulletPoint4 : Long Lasting: The tripod collar mount ring stand is CNC machined with a hollow weight saving design, polished and surface anodic oxidation, exquisite workmanship for durability. BulletPoint5 : Easy Installation: Simply slide the lens into the base slot and rotate the knob for quick and easy installation, no complicated procedures required. Lens collar replacement foot is very convenient to use. ExternallyAssignedProductIdentifier : 7618352558273 ExternallyAssignedProductIdentifier1 : 7618352555876 ExternallyAssignedProductIdentifier2 : 7618360656930 ItemName : Lens Collar Replacement Foot Compatible with EF70‑200mm EF100‑400mm 18‑110mm Lens, Tripod Mount Rings Stand Base, Built in Arca Quick Release Plate ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : tripod-lens-mount-rings Manufacturer : Tangxi ModelName : Tangxiwn8u4v5cis ModelNumber : Tangxiwn8u4v5cis PartNumber : Tangxiwn8u4v5cis ProductDescription : Specification: Item Type: Lens Collar Replacement Foot Material: Aluminum Alloy Weight: Approx. 134g / 4.7oz